Selection of memory?

hayscib

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With a xeon motherboard 5520 & two E5520 xeon processors 2.66Ghz, which memory type perform best 1066Mhz or 1333Mhz, also unbuffered or registered?

Workstation used for rendering.
 

hayscib

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Thanks for your help,

Motherboard specs:

Dual 1366-pin LGA Sockets
Supports up to two Intel® 64-bit Xeon® processor(s) of the same type below:
Quad-Core Intel®
Xeon®Processor 5500 sequence (Nehalem-EP processor)

12x 240-pin DIMM sockets
Supports up to 96 GB 1333 / 1066 / 800MHz DDR3 ECC Registered memory
Supports up to 24 GB 1333 / 1066 / 800MHz DDR3 ECC Unbuffered memory
Memory Mirroring supported

1333 / 1066 / 800MHz ECC Registered / ECC Unbuffered DDR3 SDRAM 72-bit, 240-pin gold-plated DIMMs

CPU specs:

E5520 8MB 2.26 GHz 5.86 GT/s DP 80W
 

hayscib

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Jan 31, 2010
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18,510




Thanks for your help,

Motherboard specs:

Dual 1366-pin LGA Sockets
Supports up to two Intel® 64-bit Xeon® processor(s) of the same type below:
Quad-Core Intel®
Xeon®Processor 5500 sequence (Nehalem-EP processor)

12x 240-pin DIMM sockets
Supports up to 96 GB 1333 / 1066 / 800MHz DDR3 ECC Registered memory
Supports up to 24 GB 1333 / 1066 / 800MHz DDR3 ECC Unbuffered memory
Memory Mirroring supported

1333 / 1066 / 800MHz ECC Registered / ECC Unbuffered DDR3 SDRAM 72-bit, 240-pin gold-plated DIMMs

CPU specs:

E5520 8MB 2.26 GHz 5.86 GT/s DP 80W
 
Well.

The registered memory is used for servers 'cause this memory type provides stability to all system, is more expensive too.

The processor support 1066/800 memory types (See here), so, get the 1066 Unbuffered memory BUT make you sure that is CL7 ot CL8 or less, and 1.8V max.
 

hayscib

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What is CL7 & CL8?